ArticleBMC evolutionary biology2018
Chinstrap penguin population genetic structure: one or more populations along the Southern Ocean?
Article in BMC evolutionary biology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 4 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
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Who cites it
4 citing papers in PubMed.
- Integrative evidence reveals adaptive divergence and speciation in gentoo penguins.Communications biology · 2026Article
- Positive selection over the mitochondrial genome and its role in the diversification of gentoo penguins in response to adaptation in isolation.Scientific reports · 2022Article
- Uncovering population structure in the Humboldt penguin (Spheniscus humboldti) along the Pacific coast at South America.PloS one · 2019Article
- Correction to: Chinstrap penguin population genetic structure: one or more populations along the Southern Ocean?BMC evolutionary biology · 2018Article
Corrections and comments
- Erratum issued
Authors and funding
10 authors.
Funding
Abstract
backgroundHistorical factors, demography, reproduction and dispersal are crucial in determining the genetic structure of seabirds. In the Antarctic marine environment, penguins are a major component of the avian biomass, dominant predators and important bioindicators of ecological change. Populations of chinstrap penguins have decreased in nearly all their breeding sites, and their range is expanding throughout the Antarctic Peninsula. Population genetic structure of this species has been studied in some colonies, but not between breeding colonies in the Antarctic Peninsula or at the species' easternmost breeding colony (Bouvetøya).
resultsConnectivity, sex-biased dispersal, diversity, genetic structure and demographic history were studied using 12 microsatellite loci and a mitochondrial DNA region (HVRI) in 12 breeding colonies in the South Shetland Islands (SSI) and the Western Antarctic Peninsula (WAP), and one previously unstudied sub-Antarctic island, 3600 km away from the WAP (Bouvetøya). High genetic diversity, evidence of female bias-dispersal and a sign of population expansion after the last glacial maximum around 10,000 mya were detected. Limited population genetic structure and lack of isolation by distance throughout the region were found, along with no differentiation between the WAP and Bouvetøya (overall microsatellite F
conclusionsThe subtle differentiation found may be explained by some combination of low natal philopatric behavior, high rates of dispersal and/or generally high mobility among colonies of chinstrap penguins compared to other Pygoscelis species.
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